code: def forward(self, img_whwh):
      proposal_bboxes = self.init_proposal_bboxes.weight.clone()
      proposal_bboxes = self.bbox_cxcywh_to_xyxy(proposal_bboxes)
      proposal_bboxes = proposal_bboxes.unsqueeze(
          0
      ) * img_whwh.unsqueeze(1)
  
      proposal_features = self.init_proposal_features.weight.clone()
      proposal_features = proposal_features.unsqueeze(0).tile(
          [img_whwh.shape[0], 1, 1]
      )
  
      return proposal_bboxes, proposal_features
  
file_path: PaddleDetection/ppdet/modeling/proposal_generator/embedding_rpn_head.py
imports: import paddle
  from paddle import nn
  from ppdet.core.workspace import register
label_desc: Use image node_id 5 for calling the EmbeddingRPNHead obj's underlying member method code with example usage: obj.forward(img_whwh) and returns: proposal_bboxes,  proposal_features